[Bug 72701] Screen freeze when using radeon driver

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=72701

--- Comment #16 from EmanueL Czirai <somelinuxbugs@riseup.net> ---
Created attachment 142981
  --> https://bugzilla.kernel.org/attachment.cgi?id=142981&action=edit
dmesg with radeon.test=3

with radeon.test=3 this took about 80 seconds to show me the boot screen text,
the screen was black and no cursor before that, numlock/capslock leds weren't
turning on, it seemed locked up but it wasn't - it was doing the tests.
[ with radeon.test=1 takes less time (maybe 40-50 sec) of black screen (right
after loading the initrd image) ]

and when I booted in X, I tried to start parole (media player) to play a
video(which it autoplays on startup from the last playlist) but it crashed and
the window closed without notice  and I guess the errors were:
[  336.437925] [drm:radeon_gem_object_create] *ERROR* Failed to allocate GEM
object (1544192, 2, 4096, -12)

maybe a side effect of the tests


on another note:
I enabled a few other flags (like radeon.dpm=1) to reduce the temperatures:
(now the cards frequencies look as they do when they are idle, even when
playing a video in a window - it uses only the IGD for everything, I've
noticed)

# cat $(find /sys/kernel/debug/dri/ -iname \*pm\*)
uvd    vclk: 0 dclk: 0
power level 0    sclk: 10000 mclk: 15000 vddc: 900 vddci: 0
uvd    vclk: 0 dclk: 0
power level 0    sclk: 10000 mclk: 15000 vddc: 900 vddci: 0
uvd    vclk: 0 dclk: 0
power level 0    sclk: 27587 vddc: 888
uvd    vclk: 0 dclk: 0
power level 0    sclk: 27587 vddc: 888

# sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:        +47.0°C  (crit = +98.0°C)
temp2:        +43.0°C  (crit = +126.0°C)

radeon-pci-0008
Adapter: PCI adapter
temp1:        +47.0°C  (crit = +120.0°C, hyst = +90.0°C)

radeon-pci-0100
Adapter: PCI adapter
temp1:        +52.0°C  (crit = +120.0°C, hyst = +90.0°C)

k10temp-pci-00c3
Adapter: PCI adapter
temp1:        +47.2°C  (high = +70.0°C)
                       (crit = +100.0°C, hyst = +99.0°C)

and these are while playing a (720p)video on the background in a window(resized
by me to less than 720p) which is like 1/4 of the screen behind a
semi-transparent xfce4-terminal background

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